机械防砂与分层采油一体化管柱研究与应用  

Research and application of an integrated casing string for mechanical sand control and zonal oil production

作　　者：张雷[1] 任厚毅[2] 郑金中[2] 李德忠[2] 赵刚[3] 赵金玲[4] 谢立春[4] 

机构地区：[1]上海交通大学机械工程学院 [2]胜利油田有限公司采油工艺研究院 [3]胜利油田有限公司桩西采油厂 [4]长庆油田分公司第一采油厂

出　　处：《石油机械》2006年第5期51-53,2,共3页China Petroleum Machinery

基　　金：胜利油田有限公司2003年科技攻关项目"机械防砂与分层采油一体化技术研究"(项目编号:KKF32002020)中的部分内容。

摘　　要：针对胜利油田疏松砂岩油藏机械防砂后井筒内径变小,现有分采工艺均无法实施的问题,研制了适合小直径套管的机械分层防砂与分层采油一体化管柱。该管柱采用1套换层工具控制2层采油,打破了以往的每个油层都需要1个换层工具进行分采的做法,简化了管柱结构,并可与多种机械分层防砂工艺管柱配套。该项工艺技术现场实施30井次,成功率100%。该技术可使疏松砂岩油藏各油层均衡生产,能较大限度地发挥中、低渗透层产能,并延长油井工作寿命。In consideration of the problems of wellbore shrink after mechanical sand control implemented in unconsolidated sandstone reservoirs in Shengli Oilfield, an integrated casing string is developed for zonal mechanical sand control and zonal oil production. In the casing string, a set of zone switch-over tool is used to control the production in 2 zones instead of controlling production in only one layer as in the past.The string is simplified in structure and can be matched with several other strings for mechanical and zonal oil production. The technique is applied in 30 wells with 100% success rate, and it can be used for equilibrium production in each zone of unconsolidated sandstone reservoirs, for greatly improving the productivity in middle and low permeability reservoirs and expanding the oil well's production cycle.

关 键 词：疏松砂岩 分层采油 机械防砂 套管柱 

分 类 号：TE358.1[石油与天然气工程—油气田开发工程] TE355.9